Since 1992, the San Francisco Mint has been offering Proof Sets of both the conventional copper-nickel coinage and ones in which the dime, quarter and half are .900 fine silver. Meticulously crafted, with mirrorlike surfaces and frosty details, Proofs are the cornerstone of any collection. With a low mintage of only 1,750,244 you`ll want to order this San Francisco Mint copper-nickel Proof coin today!